Parabola
Toolbar | Menu |
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Curve Parabola > <Options> |
The Parabola command draws a parabolic curve.
Steps
- Follow the prompts for the selected option.
If no option is specified, the default is used.
Command-line options | |
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MarkFocus |
Places a point object at the focus location. |
Half |
Draws only half the parabola. |
Lets you pick a focus point, direction, and end location. Focus steps
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Lets you pick a vertex point, a focus point, and an end location. Vertex steps
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Toolbar | Menu |
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The Parabola3Pt command draws a parabolic curve through three picked points.
Steps
- Follow the prompts for the selected option.
If no option is specified, the default is used.
Command-line options | |
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Mode |
The Mode options specify the function of picked point that does not specify an endpoint. FocusThe Focus option lets you pick two endpoints and a focus point. ThroughPointThe ThroughPoint option lets you pick two endpoints and a location for the parabola to pass through. VertexThe Vertex option lets you pick two end points and a vertex point. |
PickOrder |
DefaultThe Default option sets a start point, a second point that depends on the Mode setting, and then an endpoint. EndsFirstSpecify the endpoints first and then the focus, throughpoint, or vertex mode. EndsLastSpecify the focus, throughpoint, or vertex mode first and then the endpoints. |
MarkFocus |
Places a point object at the focus location. |
Toolbar | Menu |
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Curve Hyperbola > <Options> |
The Hyperbola command draws a hyperbolic curve.
Steps
- Follow the prompts for the selected option.
Command-line options | |
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Default |
The default option draws the hyperbola from the center, focus, and end. Center steps
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FromCoefficient |
The FromCoefficient option uses the A and B coefficients of the hyperbola equation to define the curve. FromCoefficient steps
A / BThese are the A and B coefficients of the equation that defines the hyperbola. The A coefficient represents the distance from the center point to the vertex of the hyperbola. If C is the distance from the center point to the foci of the hyperbola, then B2 = C2 - A2. The B coefficient can be considered the slope of the asymptotes. |
FromFoci |
The FromFoci option draws the hyperbola starting from the focus points. FromFoci steps
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FromVertex |
The FromVertex option draws the hyperbola starting from the vertices. FromVertex steps
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Drawing and display options | |
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MarkFoci |
Places point object at the focus locations.
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BothBranches |
Both branches of the hyperbola are drawn.
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ShowAsymptotes |
The asymptotes of the hyperbola are displayed as it is drawn.
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